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WS-2022-0307
Good to know:
Date: September 15, 2022
Pageflow has a membership edit feature which allows users to edit the roles of user memberships associated with an account that they have the manager role to (including their own). While the Entity dropdown select field is greyed out in the UI, an attacker can use tools which allow sending arbitrary HTTP request to craft a request to the /admin/users/{user_id}/memberships/{membership_id} endpoint containing an additional membership[entity_id] parameter. This parameter is honored when the membership is updated, allowing an attacker to update the membership object associated with their own account (with manager role) to be associated with a different attacker-chosen account instead. Since account_ids are enumerable, an attacker can compromise all accounts present on the platform.
Language: Ruby
Severity Score
Severity Score
Weakness Type (CWE)
Authorization Bypass Through User-Controlled Key
CWE-639Top Fix
CVSS v3.1
Base Score: |
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Attack Vector (AV): | NETWORK |
Attack Complexity (AC): | LOW |
Privileges Required (PR): | HIGH |
User Interaction (UI): | NONE |
Scope (S): | UNCHANGED |
Confidentiality (C): | HIGH |
Integrity (I): | HIGH |
Availability (A): | HIGH |